Cast-metal pole.



C. G. BTTB.

CAST METAL POLE.

APPLICATION FILED MAE. z3, 1908.

Patepted Jan. 18,1910.

SHEETS-SHEET 1.

C. G. ETTE. GAST METAL POLE.

` APPLICATION FILED 111113.23, 1908.

Patented 18,1910.

Ck G. TTB.

GAST METAL yous.

AEPLEOATION ULEB HAY.. 33, `1908. @gegs amntsd Jan. 18,1910.

4 SHEETS-SHEET 4.

UNITED STATES PATENT oEEicE.

('JHACTJIFS G. ETTE, ST. LOUIS,V MISSOURI, ASSIGNOR T0 ETTE INVESTMENTCOMPANY, OF ST.A LOUIS, 4MISSOURI, lA CORPORATION 0F MISSOURI.

CAST-'METAL POLE.

Specification of Letters Patent.

Patent-ed Jan. 18, 1910.

Application filed March 23, 1908. Serial No. 422,801.

['o all whom 'it may concern:

Be it known that I, CHARLES G. E'rrs, a. citizen of the United States,residing at St. Louis, Missouri, have invented a certain new and usefulImprovement in Cast-Metal loles, of which the following is a full,clear, andA exact description, such as will enable others skilled-in theartto which it appertains to'make and use the same, reference being hadto the accompanying drawings, forming part of this spec' cation, inwhich- Figure l is an elevation of a metallic pole constructed `inaccordance `with my invention and provided with lmetallic -crossarmswhieh also form partof my invention; Fig. i2 is .an enlargedperspective view of one of the sections irom which -the pole is formed;Fig. 3 is ali-enlarged cross sectional view taken on-the 'line 3 3 ofFig. 1; Fig. ltis a similar view showing a pole section of slightlydifferent form in cross section; Fig. 5 is a cross sectional view ofstill another form of pole section; Fig. (3 is a horizontal sectionalview taken on the line 6 6 of Fig. 1; Fig. 7 is a horizontal sectionalview taken ou the line T-T of Fig. Y1; Fig. 8 is a horizontal sectionalview taken on the line 8-8 of Fig. 1; Fig. 9 is a horizontal sectionalview taken through the ground-line section of the pole and at`a pointabove the domeshaped footpiece; Fig. 10 is a top plan view of a portionof the dome -shaped footpiece; Fig. 11 is a cross sectional view of thevpole showing my improved ground anchor in operative position; Fig. 12is a perspective view of said anchor detached from the pole; Fig. 13 isa perspective view showing one way in which the cross arms can he connected to the pole; Fig. 14 is an elevational View showin@ theornamental easing that can be applied to' the pole.; Fig. lois ahorizontal cross sectional view of Fi f. 14.; Fig. 16 is a view similarto Fig. '15 au( shows a casing of Slightly dif ferent construction; Fig.17 is aside' elevation of one of the cross arm members, and an extensionsecured to said member; Fig.

18 is a top plan view of the parts shown 1n' Fig. 17; Fig. 19 is avertical sectional view V taken on the line 19-19 of Fig. 17;-Fig..20 A'is an enlarged sectional view taken on the.

line 20-20 of Fig. 17 Fig. 2l is a vertical sectional view ta n on the1ine21--21of Fig. 17; andFig. 22 is a detail perspective viewAillustrating the way in which the 'brackets are connected to thecrossarm members.

This invention relates to metallic posts and poles and particularly topoles that are used for supporting electric wires, such for example, astelegraph poles.

The main object of my invention is to provide a metallic pole that isstrong, which can be manufactured at'a low cost, and which presents aneat and ornamental appearance.

Another object of my invention is to provide a metallic pole composed ofa number of comparatively short sections which are connected together ina novel manner.

Another object of my invention is to provide a metallic pole havingmetallic cross arms and ,means for insulatingr the lower portion of thepole from that portion to which the cross arms are connected. And

still another object of my invention is to provide a metallic cross armof novel construction.

Other .desirable features of my invention will be hereinafter pointedout.

Referring to Fig. 1 of the drawings which illustrates the preferred formof my invention, 1 designates a plurality of sect ions that areconnected together to form a pole. l prefer to form said sectionstapering, as shown in Fig. 1,60 that the lower portion of the pole willbe of greater cross sectional dimensions than the upper portion of thepole, but it will, of course, he understood that all of the sectionscould he formed straight or of the same cross sectional area withoutdeparting from the spirit of my invel'ition, or some of' (he sectionscould he straight and others tapering.

'lhe pole sections l are formed of cast referred form of my invention asshown 1n detail in Figs. 2 and 3, sald sectlons are of cruciform shapein cross section. A cast metal pole of this shape in cross section isstrong and com rises acomparatively small amount of meta -sothat it canybe produced at a-low cost. It also obtains a better bearing in theground or concrete in which it is embedded than a round pole wouldobtain. A nd Vstill".'nother Aadvantage of. forming the pole sections inthis manner is that all arts of the section fare 'of about the same tickness so that the heat .will penetrateintov ioo every7 portion of themetal during thev anA nealing operation. Each section 1 is previded atits lower end with integral dependY ing Wings l that telescope over theunder` neath section and thus Asecurely lock the sections together, thewings la being oli'set -slightly so as to produce shoulders orbearinvsurfaces that rest firmly upon the upper l* constitute the meansfor 'locking the scc-` tions together and for preventing one scctionfrom moving lateri ly relatively to the section on which it is mountedbut as a safe-guard against accidental displacement of the sections, Iprefer to use fastening devices 2 which pass through the depending Winl* and the portions of the adjacent section which said Wings embrace.Bolts or .rivets can be employed for this'purpose or,

. if desired, the sections can be welded together.-"By providing thesections with integral depending wings l, as above described, I reduce avery strong and rigid ole and 4also prevent water from getting etweenthe inside faces of thc wings and the portions of the adjacent sectionwhich said Wings embrace.

In Fig. 4 I have shown a pole section oli' slightly different. form fromthat shown in Figs. 2 and each leg' or flange of the section shown inI'ig. 4.- being provided with a air of depending wings l which embraceEnth faces of the cooperating leg or iangc of the underneath polesection, said wings being connected together in Suche manner that fourVshaped"cxtensions are produced.

While I prefer to ilse sections 1 of cruciform shape in cross section Ido not wish it to be understood that my broad idea is limited to a polomade up of sections ot' such forni as thc sections could be formed inthe manner shown in Fig. 5 which illustrati-.s a doubleeruciforin-shaped section or an H- shaped member provided with laterallyprojecting flanges arranged in alinement with its cross web.

The base section or lowermost section of the pole is provided withairintegral flat base 3, as shown in Fig. 1, that affords a firmfoundation and extended bearing surface for the pole and the sectionthat is located at the ground-line is preferably `made much heavier thanthe other sections of Ithe pole, as shown in Fig. 1, as this scci tionof the pole is most apt to rust and thus become weakened. As shown inFig. t), the central portion of this ground liuc section is cored out sothat all portions of said section will he of approximately the samethickness and thus Cause the heat to pcne trate .into every part of thcmetal during the annealing operation. lf desired, the central port-ionsof allthe sections 'can he cored out so as to facilitate the annealingand produce a very strong and still' pole, the central holes in the sections also forming a conduit through which wires can be run. The

ground-line section is provided with an integral base plate 4 whichrests on the sui'-, face of the ground, as shown in Fig. 1., and. a'hollow dome-shaped member or foot-piece 5 is mounted on saidbase plateLl. This foot-piece 5 can either be cast in one piece and be providedwith an opening through which the grounddinc section extends, or it canbe formed in two'or more parts, as shown in Figs. 9 and 10, each partbeing provided with upwardly projecting iaiigcs 5 that are connected tothe portions-'of thc ground-line section which they en'ibrace. I preferto provide the laterally projecting -with integral ribs 4 that projectlaterally over the foot-pi ce 5 so as to form shields which prevent wa.enfrom enterii'ig the opening in said toot-piece through which theground-line .sm-tion passes.

l'Vhcn the pole is embedded in earth I prefer to secure an anchor to theembedded portion o1 the pole, and in Figs. 1l and 1. I have shown oneform of anchor that l can usc with a pole ol eruciiorm shape in crosssection. Said anchor consists ot' la transversely extending mcmbeitprovided with a pocket or recess tr tor receiving one leg or flange ot'the pole section to which said member connected and a col'ieratingmember T provided with a pocket T fourccciving thtl oppositoly disposedleg of said polil section and lshoulders 7" that bear upon theintermediate legs or lla'nges 'of said polo section, as shown in Fig.1l. rlhc members t and 7 are comicctcd together by fastening devices 8which also clamp said members to th(l pole section, therebyY producingan ad- `instable ground :mehor that. can be arranged at any desiredpoint on the pole.

It' desired, the pole can be provided with an ornamental casing S) thatextends up the 1-0 having their inner ends bifurcatcd, asd-,3D

` pass through the biiircated portion of the step. v

The sections of t-liepole to which the. cross arms are connected are ofpinctically the same construction as the sections which forni the lowerlegs or tianges of the. cross arm carrying sections are provided with)airs of integral arallel lugs or ribs 13 and 13, as shown in igs. 2 and17. The cross arms are formed of cast metal and each cross farinconsists of two members 14 arranged on opposite sides of the pole andhaving their inner ends connected to the. pole, said members beingadapted to have extensions secured thereto are connected together. ,50

. position in the bosses 17 to lengthen the cross arm ashereinafterdescribed. Each of the cross arm members 14 is provided atits inner end with a o rtioii 15 which receives one of the lateralprojecting legs or flanges of the. pole andybeais against tivo oiA theother legs of the pole, as shown in Figs. 17 and 18, the portions 15 ,ofsaid cross arm members being arranged between the parallel lugs 13 and13* onthe flanges of the pole. The portion 15\ of one of the cross arinmembers is arranged on one side of the pole and the portion 15 of theother cross arn: member is arranged on tlie` opposite side of the pole,as shown in Fig. 18 and said portions are -secured to the le by means offastening devices whiciio pass through said parts. The lower ribs 13 ofthe pairs of parallel ribs on thepol'e constitute the supporting meansfor said cross arm members, and the upper ribs 13g of said pairs fornishields that prevent water from running down into' the joint between thepole and the portions 15 of the "cross arm members so that rust cannotforni on the cross arm and lpole at the point where |they Thecrossai'inmemf' lbers 14 are preferably fills-bape iii cross section andif desired. the vertical webso'f said members can be gra]intersecting-diagonal ribs 16.l cross arm member is :aide with aplurality- Each provided; at its 'upper of'integral bossesor thickenedportions 17 that `arefperforated''to receive insulator pins '17 aiid 20,the 413e-tical web ofthecross a'rm member being irorided with Qopenings419 into which the owei' ends of said' insulator piis project and-thepins beingl retained iii.

byarieans of keys or ass througlilthe pinche e cros'sjarmmembes-.Mextensions' 14$ar lbe' cotter pins 2O thatare' so formed' that part ofthe pole except that .the

provided with inte- Y.

the extensions beingpi'ovided at their inner ends With jaws21 thatembrace the vertical web of the cross arm member 14 and are con nectedthereto by fastening devices 22. If desired, the extensions 14* can beprovided .at their outer ends with arrow-shaped heads 23 that impart aneat and finished appearance to thecross arm. As an additional sup-'portingnieans .for the cross arms and also to im art an -ornamentalappearance tovv the o e I use brackets 24 4provided at their ower endswith jaws 25 which eiiibi'aceithe. le or laterally projecting flanges ofthe poe and rest upon the .ribs 13 on said flanges, said brackets heilignrovided i at shouldeisZ'( von, the lower fla cross arm members whichsaid brackets port and embrace` the Vertical, Webs of cross arm me sup?saiel can; be .'em'ployed for' conlastmentioned fastening devices. arenot# ab'- solutely 'of the brackets Ain position.

'.\ ,.Lnstead of using, cross arms ofthe. con-` structionabove-dcsciibed'- I can use onepiece. cross ariiis and .secure Athem4to. L- sha )ed snp 'Orts 28 provided wit-h integral ang e:sha ebrackets-29 thatareconneetcd -to the' o e,. as shown. in Fig. 13. Toovercome tie necessit ,of insulatingeach cross arm from the po e I haveconstructed'tlie pole 'so that tlielower portion thereof is iiisnlatedfrom/the upper portion to which the cross arms vare connected. As shownin F ig. 1, the depending wings 1l on tlie`.polc sectiom- Lto whichthelowerinost cross arin is connected l'Pare so. formed that `they.iiill' not contact ,avith the, pole section arranged underneath said.cross armi carrying section. thus providing spaces iii which blocksofwood 30 orl other suitable insulating material can be placed, boltsorv fastenin' through the depen arm carrying 'de vic -whicir passA-block- 31 of insulating materia fis( also' in;-

most cross arm carrying section and' theA upper endof the polesectioniaira derneath saine so feetly insulated from ea cli 'otherl-tire upper portion of the p'ole -W portion oethelpoleg -witli .meansfor sustainiiigkonecross jarm,

necessary as, the. shoulders 27 onAv the cross arm membershold the upperends as shown iii Fig. 6, the

added thereto to lengthen ,the cross arm,

their upper ends with jaws 2G that engage4 nges of the mbers, as, shownin Figs. 17

.devicesand ifv desired, fas-- brackets to the-eross -armf members butthese-v ing wings of-t-he' cross i i section being -pr'eferablysur-V`rounded by sleeves of.` insulatin .Imaterial. j A 12o 4tei'p'osedbetween the-lowerlendofthe1oWei:-\-

18, as shownin Figs..

the crossari'ns insulatedromthe lowerl `'.lilach ofthe cross armcarryingf sections' of: the .pole lisprovided and said sections are preferablyof such' .length that the various cross arms will be separated trom eachother the usual distance or eighteen inches. .lt will. of course.' beobvious. ln'nvever, that the sections could be made long: enough tocarry more than one cross arm it so desired. An ornamental pole cap 3Qprovided with depending' wings 32" is connected to the upper end of thepole and` it' desired, said cap can be provided with a pin 33 t'orsupporting an insulator.

A pole of the construction above described can be produced at a very lowcost as all of the parts which form the pole are castv and no machinework is required in assemblingr the parts due to the fact that the holesthrough which the fastening devices pass and also the the parts arecast.. the pole. are ot' such shape m crpss section that the heat canpenetrate into all portions of the metal during the annealing operationso that the metal will not crack when it is cooling ott'. The integraldepending wings l and the integral ribs 13 on the pole seetions preventwater from gettilngr into the joints between the pole sections and thejoints between tht` cross arms members and the pole so that there is noliability ot" these parts being eaten away by rust.

Therpole presents a neat and ornamental appearance and can be usedas atelegraph pole-` flag-pole, electric light pole, or in fact, for anypurpose that posts and poles are used for. Or, it desired, several of inv improved poles could be arranged to form a tripod and thus produce atower. the ptles being' connected together b v braces so as to produce astrong and rigid structure.

llaving thus described in v invention, what I claim as new and desire tosecure by Letters Patent is:

l. A rast metal pole provided with a ground-line section havingl a baseplate which rests upon the grouml in which the pole is embedded, afoot-pieee embracing the pole and resting on said base plate, and meansprojecting laterally from said sect-ion to prevent water from enteringthe joint between Said .section and foot-piece.

2. A metal pole adapted to be embedded in the ground. a base plateadapted to rest on the, top s u't'aee ot the ground, a foot-piecesurrounding the pole and restingT on the base plate, and lugsv on thepole for preventing water from entering the joint between saidfoot-piece and `pole.

A pole, a baserplate adapted to rest on l the. ground in whic said pole.is embedded, an approximately dome-shaped footieee surrounding the Apoleand resting onthe ase plate, and means projecting laterally fromsupporting ribs are formed at the time,v

the. pole for preventing water from entering the joint between said,foot-piece and pole.

et. A cast. metal pole having vertically disposed anees or legs that arerovided with integral ri s or lu s arrangedp horizontally, and ole stepsprovided with bifurcate'd ends whic straddle said flanges and rest uponsaid lugs.

5. A metallic pole of angular shape in cross section, cross arm membersprovided at their -i nner ends with portions that conform to the shapeof the pole and embrace same, and integral laterally projecting lugs 0nthe pole between which the inner end portions of said cross arm membersare arranged.

G. A metallic pole of approximately cruciform shape in cross section, across arm formed b v a pair of members that are arrl`he parts whichforni'- ranged on opposite sides of the pole and each of which isprovided at its inner ends with a portion that conforms to the'crosssectional shape ot' one-halt of the pole, and laterally projectingdevices formed integral with the pole to form supports for said crossarm members.

T. A metal pole provided wit-h a cross arm which consists of aupair ofcast metal members connected ,at their inner ends to the ole, meansprojecting laterally from the po e to prevent water from getting intothe joints between said members and pole, brackets connected to the poleand means projecting laterally from the pole to prevent water fromgetting into the joints between the pole and said'brackets.

S. A metal pole provided with a cross arm which consists of a pair ofcast metal melnbers approximately I-shaped in cross section connected attheir inner ends. to the pole, brackets connected to the pole and tosaid members, said members having their lower flanges cut away toreceive the upper ends of said brackets, and integral lugs on the polewhich form abntmcnts for the lower ends of said brackets.

5). A metal pole provided with laterally projecting legs or fianges, across arm connected to said le, and brackets provided at their lowerendiso with jaws that embrace the legs or flanges of the pole and attheir upper ends with jaws that embrace the cross arm, the vcross armbeing provided with shoulders t that contact with the jaws on the upperends of the brackets.

In testimony whereof I hereunto atlix my signature in the presence. oftwo this nineteenth day of March 1908.

CHARLES G. ETTE,

Witnesses EnwAaD ScHwmnE,

ALTER CLARENCE RAITHEL.

witnesses,

